diff --git a/util/secscan/api.py b/util/secscan/api.py
index 5efdafb92..fb8c5c0d4 100644
--- a/util/secscan/api.py
+++ b/util/secscan/api.py
@@ -1,3 +1,4 @@
+import os
 import logging
 
 from abc import ABCMeta, abstractmethod
@@ -23,7 +24,7 @@ TOKEN_VALIDITY_LIFETIME_S = 60  # Amount of time the security scanner has to cal
 
 UNKNOWN_PARENT_LAYER_ERROR_MSG = 'worker: parent layer is unknown, it must be processed first'
 
-MITM_CERT_PATH = slash_join(CONF_DIR, 'mitm.cert')
+MITM_CERT_PATH = os.path.join(CONF_DIR, 'mitm.cert')
 
 DEFAULT_HTTP_HEADERS = {'Connection': 'close'}